A93/100
UNION CITY — Water Quality Report 2026
Serving 1,630 people · Michigan
Water Source
Groundwater
County
—
System ID
MI0006720
Violations
3
Contaminant Test Results
EPA Violation History
1
Violation (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Monitoring violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: July 11, 2021 – July 28, 2021Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Frequently Asked Questions About UNION CITY
Is UNION CITY water safe to drink?
UNION CITY water receives a grade of A (93/100), which is considered excellent. Out of 1 contaminants tested, none exceed EPA legal limits. The water meets federal safety standards.
What contaminants has UNION CITY detected?
1 contaminants were tested in UNION CITY's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does UNION CITY have any EPA violations?
Yes, UNION CITY has 3 EPA violation(s) on record, with the most recent in 2021. Violation types include RPT, MR, MCL. 1 are health-based violations.
How many people does UNION CITY serve?
UNION CITY serves approximately 1,630 people, Michigan. The system provides water to 1 community: Union City.
What type of water does UNION CITY provide?
UNION CITY sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is MI0006720.
How does UNION CITY compare to other utilities in Michigan?
UNION CITY scores 93/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our Michigan state page for a full comparison of water systems.